UX: Highlight user's vote in polls.

plugins/poll/assets/javascripts/widgets/discourse-poll.js.es6

@@ -160,8 +160,9 @@ createWidget('discourse-poll-standard-results', {
 
       return ordered.map((option, idx) => {
         const contents = [];
-
         const per = rounded[idx].toString();
+        const chosen = attrs.vote.includes(option.id);
+
         contents.push(h('div.option',
                        h('p', [ h('span.percentage', `${per}%`), optionHtml(option) ])
                      ));
@@ -178,7 +179,7 @@ createWidget('discourse-poll-standard-results', {
           }));
         }
 
-        return h('li', contents);
+        return h('li', { className: `${chosen ? 'chosen' : ''}` }, contents);
       });
     }
   }

plugins/poll/assets/stylesheets/common/poll.scss

@@ -107,7 +107,11 @@ div.poll {
 
     .bar {
       height: 10px;
-      background: $primary;
+      background: dark-light-diff($primary, $secondary, 50%, -25%);;
+    }
+
+    .chosen .bar {
+      background: $tertiary;
     }
   }